The ____________________ of a telescope is determined by the size of the objective

Fill in the blank(s) with correct word


light-gathering power

Physics & Space Science

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A 3rd magnitude star appears 2.5 times brighter than a 4th magnitude star

Indicate whether the statement is true or false

Physics & Space Science

The corona and chromosphere of the Sun are believed to be heated by

a. shock waves rising from below the photosphere. b. the solar wind. c. sunspots. d. magnetic carpets. e. differential rotation.

Physics & Space Science

Molar Specific Heats: How much heat is required to raise the temperature of 2.00 moles of an ideal monatomic gas by 10 C° at constant volume? (R = 8.31 J/mol ? K).

A. 249 J B. 416 J C. 208 J D. 200 J E. 125 J

Physics & Space Science

A 4.0-pC point charge is placed at the center of a hollow (inner radius = 2.0 cm, outer radius = 4.0 cm) conducting sphere which has a net charge of 4.0 pC. Determine the magnitude of the electric field at a point which is 6.0 cm from the point charge

a. 35 N/C b. 25 N/C c. 30 N/C d. 20 N/C e. 10 N/C

Physics & Space Science